/*    stepwise.c*/int     LEFT_MOTOR=     0;int     RIGHT_MOTOR=    3;int     LEFT_EYE=       0;int     RIGHT_EYE=      1;void main(){    while (1) {        /* sensor readings are inversely related to brightness */        if (analog(LEFT_EYE) < analog(RIGHT_EYE)) {            /* left is brighter than right; turn to left  */            motor(RIGHT_MOTOR, 100); sleep(0.1); off(RIGHT_MOTOR);        } else {            /* turn to right */            motor(LEFT_MOTOR, 100); sleep(0.1); off(LEFT_MOTOR);        }    }}